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EP1088775B1 - Conveyor chain in particular for machines for machining edges - Google Patents

Conveyor chain in particular for machines for machining edges Download PDF

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Publication number
EP1088775B1
EP1088775B1 EP00119525A EP00119525A EP1088775B1 EP 1088775 B1 EP1088775 B1 EP 1088775B1 EP 00119525 A EP00119525 A EP 00119525A EP 00119525 A EP00119525 A EP 00119525A EP 1088775 B1 EP1088775 B1 EP 1088775B1
Authority
EP
European Patent Office
Prior art keywords
chain
conveyor chain
chain according
oil
conveyor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00119525A
Other languages
German (de)
French (fr)
Other versions
EP1088775A3 (en
EP1088775A2 (en
Inventor
Detlef Tychsen
Manfred Rottmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sbr Maschinen-Handelsgesellschaft Mbh & Co KG
Original Assignee
Sbr Maschinen-Handelsgesellschaft Mbh & Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Publication of EP1088775A2 publication Critical patent/EP1088775A2/en
Publication of EP1088775A3 publication Critical patent/EP1088775A3/en
Application granted granted Critical
Publication of EP1088775B1 publication Critical patent/EP1088775B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B25/00—Feeding devices for timber in saw mills or sawing machines; Feeding devices for trees
    • B27B25/04—Feeding devices for timber in saw mills or sawing machines; Feeding devices for trees with feed chains or belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27F—DOVETAILED WORK; TENONS; SLOTTING MACHINES FOR WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES
    • B27F1/00—Dovetailed work; Tenons; Making tongues or grooves; Groove- and- tongue jointed work; Finger- joints
    • B27F1/02—Making tongues or grooves, of indefinite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
    • B65G17/06—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface having a load-carrying surface formed by a series of interconnected, e.g. longitudinal, links, plates, or platforms
    • B65G17/08—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface having a load-carrying surface formed by a series of interconnected, e.g. longitudinal, links, plates, or platforms the surface being formed by the traction element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
    • B65G17/30—Details; Auxiliary devices
    • B65G17/38—Chains or like traction elements; Connections between traction elements and load-carriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G45/00—Lubricating, cleaning, or clearing devices
    • B65G45/02—Lubricating devices
    • B65G45/08—Lubricating devices for chains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/02—Articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2207/00—Indexing codes relating to constructional details, configuration and additional features of a handling device, e.g. Conveyors
    • B65G2207/14—Combination of conveyors

Definitions

  • the invention relates to a transport chain for the continuous process strip or plate-shaped to be machined Workpieces, especially for edge processing machines or Double-end tenoner, with chain links that have an endless order around sprockets deflected chain belt with essentially continuous Form load bearing surface by connecting pieces and parallel, Chain bolts mounted in needle bearings connected to each other are arranged on two parallel and spaced apart Support stationary guides.
  • the stationary rail forms a positive one Prismatic guide, which in a correspondingly negatively trained Prismatic track engages in the chain links.
  • the other rail is designed as a support bar.
  • the prismatic guide on the part of the guide rail with corresponding ball bearings positively profiled outer ring formed in a corresponding intervene negatively trained prismatic path of the chain links.
  • the support bar is with support bearings with a smooth outer ring stocked. The chain pins protrude into the sprockets with their bolt ends beyond the link plates.
  • the invention has for its object a transport chain to develop the design described at the beginning, which is high Tool life and feed speeds of up to 200 m / min. allows with the highest processing accuracy and quality.
  • each chain link two positively trained assigned to the stationary tours prismatic or cylindrical guide profiles (hereinafter: External prism) has the cross-section adapted in them Guide channels (hereinafter: inner prism) of the stationary Guides are slidably guided through the oil supply and return lines connected to an oil circulation pressure lubrication system and are a self-centering sliding guide with closed, the chain links form a lubricating oil film.
  • each chain link between the separation gap has adjacent gap links bridging gap seal.
  • the penetration of dust into the circulation area of the needle bearing chain can also be prevented according to the invention by that the precision needle bearing chain in a side of the two stationary guides limited, as a pressure chamber trained cavity that is pressurized with compressed air is.
  • a dust scraper for at the chain conveyor inlet the outer prisms of the chain links is provided, and if on Chain track outlet an oil wiper for the outer prisms of the chain links is provided.
  • FIG. 1 The chain transport system shown in Figure 1 settles together from a workpiece to be machined Transport chain 1, an upper pressure system that clamps the workpieces 2 and one of the lower or loose strands of the transport chain 1 supporting webbing 3.
  • Figure 1 lets in the direction of drawn transport arrow 4 entering the chain system Recognize workpiece 5 by its in the transport direction running side edges to be machined. Therefor a tool 6 is indicated in FIG.
  • the transport chain 1 consists essentially of chain links 7, which has an endless chain belt deflected around sprockets form a substantially continuous load bearing surface 8.
  • the sprocket shown on the right in FIG. 1 is a drive sprocket 9 and the sprocket shown on the left Tension sprocket 10, which is a pneumatic or hydraulic regulated tensioning bearing 11 can act.
  • the drive sprocket is regulated via a not shown Servomotor driven. This also takes place synchronously Not shown drive for the webbing 3, the is guided over ball-bearing support rollers 12.
  • the individual chain links 7 are via a precision needle bearing chain 13 connected to each other, which is a small division and has dust-proof built-in needle bearings 14, in which parallel arranged chain pins 15 are mounted on both sides mesh in the sprockets 9, 10.
  • the chain links connected to one another by connecting pieces 7 are based on two parallel and spaced apart stationary guides 16 from the strip-shaped are and an outer prism 17 of the chain link 7 assigned guide trough designed as an inner prism 18 has.
  • the latter is over several, over the length of the Transport chain 1 oil feed holes arranged at a distance from each other 19 and also arranged at a distance from one another Oil return holes 20 to one in the drawing is not Oil circulation pressure lubrication system shown in more detail connected, in which a filter system, also not shown, for the oil returning from the guide channels 18 is integrated.
  • Each guide trough 18, which is preferably designed as a 90 ° inner prism has a central longitudinal groove 21 for the oil return on.
  • the inner prism made of hardened and ground steel each guide trough 18 forms a self-centering Slideway, in the one not shown in the drawing pressure and quantity controlled oil pump a closed, the chain links 7 sliding oil film is formed.
  • the two stationary guides 16 are on one side Chain carrier 22 screwed and this height and side adjustable.
  • On the outside long side of each stationary Guide 16 is attached to a sealing strip 23, the prism engagement area covers the outside and in one in each chain link 7 longitudinal sealing groove located above the outer prism 17 24 sealingly engages.
  • Each chain link 7 consists of one with the two outer prisms 17 provided gunmetal plate 25 and one attached to it Load bearing plate 26. In addition, each chain link 7 a bridging the separation gap between adjacent chain links 7 Gap seal 27.
  • the precision needle bearing chain 13 runs in a side of the two stationary guides 16 limited, as a pressure chamber trained cavity 28 um, the top and bottom with compressed air is acted upon.
  • FIG. 2 shows that a dust scraper at the chain conveyor inlet 29 for the outer prisms 17 of the chain links 7 and Chain track outlet an oil wiper 30 for the outer prisms mentioned 17 are provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • General Engineering & Computer Science (AREA)
  • Chain Conveyers (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Advancing Webs (AREA)
  • Pusher Or Impeller Conveyors (AREA)

Abstract

The chain conveyor for strip- or sheet material workpieces (5) in an edge processing machine or double-ended profiling machine has links which are joined by bolts (15) mounted in needle roller bearings (14). Each link has rails (16) on either side of the bolt in which prismatic or cylindrical rods (17) are mounted in grooves (18) of corresponding cross-section. An oil inlet (19) and outlet (20) on either side of the link are connected to a lubricating system which forms an oil film over the links.

Description

Die Erfindung betrifft eine Transportkette für im Durchlaufverfahren spanend zu bearbeitende leisten- oder plattenförmige Werkstücke, insbesondere für Kantenbearbeitungsmaschinen oder Doppelendprofiler, mit Kettengliedern, die ein endloses, um Kettenräder umgelenktes Kettenband mit im wesentlichen durchgehender Lasttragfläche bilden, durch Verbindungsstücke undparallele, in Nadellagern gelagerte Kettenbolzen miteinander verbunden sind und sich auf zwei parallel und im Abstand voneinander angeordneten stationären Führungen abstützen.The invention relates to a transport chain for the continuous process strip or plate-shaped to be machined Workpieces, especially for edge processing machines or Double-end tenoner, with chain links that have an endless order around sprockets deflected chain belt with essentially continuous Form load bearing surface by connecting pieces and parallel, Chain bolts mounted in needle bearings connected to each other are arranged on two parallel and spaced apart Support stationary guides.

Eine derartige Ausführungsform lässt sich der DE 29 12 194 C2 entnehmen. Hier bildet die eine stationäre Schiene eine positive Prismenführung, die in eine entsprechend negativ ausgebildete Prismenbahn in den Kettengliedern eingreift. Die andere Schiene ist als Stützleiste ausgebildet. Dabei ist die Prismenführung seitens der Führungsleiste durch Kugellager mit entsprechend positiv profiliertem Außenring gebildet, die in eine entsprechend negativ ausgebildete Prismenbahn der Kettenglieder eingreifen. Die Stützleiste ist mit Stützlagern mit glattem Außenring bestückt. Zum Einzahnen in die Kettenräder ragen die Kettenbolzen mit ihren Bolzenenden über die Kettenlaschen hinaus. Such an embodiment can be found in DE 29 12 194 C2 remove. Here the stationary rail forms a positive one Prismatic guide, which in a correspondingly negatively trained Prismatic track engages in the chain links. The other rail is designed as a support bar. Here is the prismatic guide on the part of the guide rail with corresponding ball bearings positively profiled outer ring formed in a corresponding intervene negatively trained prismatic path of the chain links. The support bar is with support bearings with a smooth outer ring stocked. The chain pins protrude into the sprockets with their bolt ends beyond the link plates.

Andere Ausführungsformen offenbaren z.B. das DE-GM 73 20 344 sowie die US-PS 3,262,550.Other embodiments disclose e.g. the DE-GM 73 20 344 and U.S. Patent 3,262,550.

Die im Stand der Technik eingesetzten gleitenden oder rollenden Kettenführungssysteme haben aufgrund des an den Führungsteilen auftretenden Reibungsverschleißes Standzeitprobleme, die noch durch nicht mit ausreichender Sicherheit aus den Führungen zu entfernende Staubpartikel verstärkt werden. Die Maßhaltigkeit zwischen Werkstück- und Werkzeugposition lässt sich allenfalls durch Anbringen von seitlichen Gleitauflageleisten für die Werkstücke gewährleisten. Dann können aber empfindliche Oberflächen durch die zwischen Werkstückfläche und Gleitauflageleiste auftretende Reibung beschädigt werden. Auch Rillenkugellager-Außenringe verschleißen durch Reibungsverschleiß und weisen daher nur begrenzte Standzeiten auf. Staubeintritt kann zum Abbremsen der Außenringe und damit zum Heißlaufen von Lagern führen, was sich bei der großen Anzahl von Lagern nicht oder nur mit großem Aufwand überprüfen lässt.The sliding or rolling used in the prior art Chain guide systems have due to the on the guide parts Occurring frictional wear life problems that still due to insufficient security from the guides removing dust particles are amplified. The dimensional accuracy at most between the workpiece and tool position by attaching side slide support strips for the workpieces guarantee. But then sensitive surfaces can due to the occurring between the workpiece surface and the sliding support bar Friction will be damaged. Also deep groove ball bearing outer rings wear through friction wear and therefore only show limited downtimes. Dust ingress can slow down the Outer rings and thus cause bearings to overheat, which is what with the large number of bearings not or only with great effort can be checked.

Der Erfindung liegt die Aufgabe zugrunde, eine Transportkette der eingangs beschriebenen Bauform zu entwickeln, die eine hohe Standzeit aufweist und Vorschubgeschwindigkeiten von bis zu 200 m/min. zulässt bei höchster Bearbeitungsgenauigkeit und -qualität.The invention has for its object a transport chain to develop the design described at the beginning, which is high Tool life and feed speeds of up to 200 m / min. allows with the highest processing accuracy and quality.

Ausgehend von der eingangs beschriebenen Transportkette wird diese Aufgabe erfindungsgemäß dadurch gelöst, dass jedes Kettenglied zwei den stationären Führungen zugeordnete, positiv ausgebildete prismatische oder zylindrische Führungsprofile (nachfolgend: Außenprisma) aufweist, die in ihnen im Querschnitt angepaßten Führungsrinnen (nachfolgend: Innenprisma) der stationären Führungen gleitend geführt sind, die über Öl-Zulauf- und -Rücklaufleitungen an ein Öl-Umlaufdruckschmiersystem angeschlossen sind und eine selbstzentrierende Gleitführung mit geschlossenem, die Kettenglieder gleitend tragenden Ölfilm bilden. Starting from the transport chain described at the beginning this object is achieved in that each chain link two positively trained assigned to the stationary tours prismatic or cylindrical guide profiles (hereinafter: External prism) has the cross-section adapted in them Guide channels (hereinafter: inner prism) of the stationary Guides are slidably guided through the oil supply and return lines connected to an oil circulation pressure lubrication system and are a self-centering sliding guide with closed, the chain links form a lubricating oil film.

Soweit nachfolgend auf Außen- bzw. Innenprismen, Prismeneingriffsbereich oder dergleichen Bezug genommen wird, gelten diese Ausführungen in der Regel auch für zylindrische, also für solche Führungssysteme, bei denen sich der Querschnitt des Führungsprofils nach unten verjüngt bzw. sich der Querschnitt der zugeordneten Führungsrinne in Anpassung an das positiv ausgestaltete Führungsprofil nach oben erweitert.So far below on outer or inner prisms, prism engagement area or the like is referred to, these apply As a rule, versions also for cylindrical ones, i.e. for such Guide systems in which the cross section of the guide profile tapers downwards or the cross-section of the assigned Guide trough in adaptation to the positively designed Management profile expanded upwards.

Da im Bereich der Führungsgleitflächen keine metallische Berührung mehr auftritt, entsteht an den Gleitflächen kein Reibungsverschleiß und somit Dauerhaftigkeit der Maßgenauigkeit. Es gibt keine Maßabweichung mehr zwischen Werkstück- und Werkzeugposition. Das vibrationsfreie und geräuscharme Gleiten der Kettenplatten auf einem geschlossenen Ölfilm führt zu einer verbesserten Werkstückkantenqualität und zu hohen Werkzeugstandwegen und zwar auch bei höchsten Vorschubgeschwindigkeiten. Bei der Bearbeitung von Werkstücken für z.B. Laminatfußböden, Echtholzfußböden oder dergleichen lässt sich eine Füge- und Winkelgenauigkeit von etwa 0,01 mm erzielen.Since there is no metallic contact in the area of the guide sliding surfaces no longer occurs, there is no frictional wear on the sliding surfaces and thus durability of dimensional accuracy. There are no more dimensional deviation between workpiece and tool position. The vibration-free and low-noise sliding of the chain plates on a closed oil film leads to an improved Workpiece edge quality and too high tool life and even at the highest feed speeds. When editing of workpieces for e.g. Laminate floors, real wood floors or the like can be a joining and angular accuracy of about 0.01 mm.

Aufgrund der an sich bestehenden Überbestimmung ist es zweckmäßig, wenn zumindest eine der beiden stationären Führungen höhenund seitenjustierbar an einem Kettenträger befestigt ist.Due to the inherent over-determination, it is advisable if at least one of the two stationary guides is laterally adjustable attached to a chain carrier.

Um in der Lasttragfläche des Transportbandes das Eindringen von Staub zwischen benachbarten Kettengliedern zu verhindern, ist es zweckmäßig, wenn jedes Kettenglied eine den Trennspalt zwischen benachbarten Kettengliedern überbrückende Spaltdichtung aufweist.In order to prevent the ingress of It is to prevent dust between adjacent chain links useful if each chain link between the separation gap has adjacent gap links bridging gap seal.

Das Eindringen von Staub in den Umlaufbereich der Nadellagerkette lässt sich erfindungsgemäß zusätzlich dadurch verhindern, dass die Präzisionsnadellagerkette in einem seitlich von den beiden stationären Führungen begrenzten, als Überdruckkammer ausgebildeten Hohlraum umläuft, der mit Druckluft beaufschlagt ist. The penetration of dust into the circulation area of the needle bearing chain can also be prevented according to the invention by that the precision needle bearing chain in a side of the two stationary guides limited, as a pressure chamber trained cavity that is pressurized with compressed air is.

Um eine einwandfreie Prismenführung zu gewährleisten, ist es vorteilhaft, wenn am Kettenbahneinlauf ein Staubabstreifer für die Außenprismen der Kettenglieder vorgesehen ist, und wenn am Kettenbahnauslauf ein Ölabstreifer für die Außenprismen der Kettenglieder vorgesehen ist.To ensure proper prismatic guidance, it is advantageous if a dust scraper for at the chain conveyor inlet the outer prisms of the chain links is provided, and if on Chain track outlet an oil wiper for the outer prisms of the chain links is provided.

Soweit Staub in die Prismenführung eindringt, erfolgt durch den Ölumlauf eine Staubpartikel-Ausspülung. Es ist daher zweckmäßig, wenn eine Filteranlage für das aus den Führungsrinnen zurücklaufende Öl vorgesehen ist.As far as dust penetrates the prismatic guide, it is done by the Oil circulation a dust particle flush. It is therefore advisable if a filter system for the returning from the guide channels Oil is provided.

Um auch bei hohen Transportgeschwindigkeiten einen ruhigen Lauf der Nadellagerkette zu erzielen, ist es zweckmäßig, wenn die mit kleiner Teilung ausgebildete Nadellagerkette um Kettenräder mit verhältnismäßig großem Durchmesser herumgeführt wird. Hierunter werden Kettenräder von etwa 2 m Radumfang verstanden, die aufgrund ihres großen Durchmessers geringere Umdrehungen, aber eine größere Zähnezahl aufweisen können, woraus sich ein geringerer Polygoneffekt ergibt.In order to run smoothly even at high transport speeds To achieve the needle bearing chain, it is useful if the with Small pitch trained needle bearing chain around sprockets relatively large diameter is led around. this includes are understood sprockets of about 2 m wheel circumference, which due to their large diameter smaller revolutions, but one can have a larger number of teeth, resulting in a smaller number Polygon effect results.

Weitere Merkmale der Erfindung sind Gegenstand der Unteransprüche und werden in Verbindung mit weiteren Vorteilen der Erfindung anhand eines Ausführungsbeispieles näher erläutert.Further features of the invention are the subject of the dependent claims and are in connection with further advantages of the invention explained in more detail using an exemplary embodiment.

In der Zeichnung ist eine als Beispiel dienende Ausführungsform der Erfindung dargestellt. Es zeigen

Figur 1
in schematischer Darstellung in Seitenansicht ein Transportkettensystem;
Figur 2
in vergrößertem Maßstab ein Detail der Figur 1 und
Figur 3
in vergrößertem Maßstab einen Querschnitt gemäß der Linie III-III in Figur 1.
In the drawing, an exemplary embodiment of the invention is shown. Show it
Figure 1
a schematic representation in side view of a conveyor chain system;
Figure 2
on an enlarged scale a detail of Figures 1 and
Figure 3
on an enlarged scale a cross section along the line III-III in Figure 1.

Das in Figur 1 dargestellte Kettentransportsystem setzt sich zusammen aus einer die zu bearbeitenden Werkstücke aufnehmenden Transportkette 1, einem die Werkstücke einspannenden Oberdrucksystem 2 und einem den unteren bzw. losen Trum der Transportkette 1 abstützenden Gurtband 3. Figur 1 lässt ein in Richtung des eingezeichneten Transportpfeiles 4 in das Kettensystem einlaufendes Werkstück 5 erkennen, das an seinen in Transportrichtung verlaufenden Seitenkanten spanend bearbeitet werden soll. Hierfür ist in Figur 3 ein Werkzeug 6 angedeutet.The chain transport system shown in Figure 1 settles together from a workpiece to be machined Transport chain 1, an upper pressure system that clamps the workpieces 2 and one of the lower or loose strands of the transport chain 1 supporting webbing 3. Figure 1 lets in the direction of drawn transport arrow 4 entering the chain system Recognize workpiece 5 by its in the transport direction running side edges to be machined. Therefor a tool 6 is indicated in FIG.

Die Transportkette 1 besteht im wesentlichen aus Kettengliedern 7, die ein endloses, um Kettenräder umgelenktes Kettenband mit einer im wesentlichen durchgehenden Lasttragfläche 8 bilden. Dabei ist das in Figur 1 rechts dargestellte Kettenrad ein Antriebskettenrad 9 und das links dargestellte Kettenrad ein Spannkettenrad 10, das sich über ein pneumatisch oder hydraulisch geregeltes Spannlager 11 beaufschlagen lässt. Das Antriebskettenrad wird über einen nicht näher dargestellten regelbaren Servomotor angetrieben. Synchron hierzu erfolgt der ebenfalls nicht näher dargestellte Antrieb für das Gurtband 3, das über kugelgelagerte Stützrollen 12 geführt ist.The transport chain 1 consists essentially of chain links 7, which has an endless chain belt deflected around sprockets form a substantially continuous load bearing surface 8. The sprocket shown on the right in FIG. 1 is a drive sprocket 9 and the sprocket shown on the left Tension sprocket 10, which is a pneumatic or hydraulic regulated tensioning bearing 11 can act. The drive sprocket is regulated via a not shown Servomotor driven. This also takes place synchronously Not shown drive for the webbing 3, the is guided over ball-bearing support rollers 12.

Die einzelnen Kettenglieder 7 sind über eine Präzisionsnadellagerkette 13 miteinander verbunden, die eine kleine Teilung und staubdicht eingebaute Nadellager 14 aufweist, in denen parallel zueinander angeordnete Kettenbolzen 15 gelagert sind, die beidseitig in die Kettenräder 9, 10 einzahnen.The individual chain links 7 are via a precision needle bearing chain 13 connected to each other, which is a small division and has dust-proof built-in needle bearings 14, in which parallel arranged chain pins 15 are mounted on both sides mesh in the sprockets 9, 10.

Die über Verbindungsstücke miteinander verbundenen Kettenglieder 7 stützen sich auf zwei parallel und im Abstand voneinander angeordneten stationären Führungen 16 ab, die leistenförmig ausgebildet sind und jeweils eine einem Außenprisma 17 des Kettengliedes 7 zugeordnete, als Innenprisma ausgebildete Führungsrinne 18 aufweist. Letztere ist über mehrere, über die Länge der Transportkette 1 im Abstand voneinander angeordnete Öl-Zulaufbohrungen 19 sowie über ebenfalls im Abstand voneinander angeordnete Öl-Rücklaufbohrungen 20 an ein in der Zeichnung nicht näher dargestelltes Öl-Umlaufdruckschmiersystem angeschlossen, in das eine ebenfalls nicht näher dargestellte Filteranlage für das aus den Führungsrinnen 18 zurücklaufende Öl integriert ist. Jede Führungsrinne 18, die vorzugsweise als 90°-Innenprisma ausgebildet ist, weist eine mittige Längsnut 21 für den Ölrücklauf auf. Das aus gehärtetem und geschliffenem Stahl bestehende Innenprisma jeder Führungsrinne 18 bildet eine selbstzentrierende Gleitführung, in der über eine in der Zeichnung nicht näher dargestellte druck- und mengengeregelte ölpumpe ein geschlossener, die Kettenglieder 7 gleitend tragender Ölfilm gebildet wird.The chain links connected to one another by connecting pieces 7 are based on two parallel and spaced apart stationary guides 16 from the strip-shaped are and an outer prism 17 of the chain link 7 assigned guide trough designed as an inner prism 18 has. The latter is over several, over the length of the Transport chain 1 oil feed holes arranged at a distance from each other 19 and also arranged at a distance from one another Oil return holes 20 to one in the drawing is not Oil circulation pressure lubrication system shown in more detail connected, in which a filter system, also not shown, for the oil returning from the guide channels 18 is integrated. Each guide trough 18, which is preferably designed as a 90 ° inner prism has a central longitudinal groove 21 for the oil return on. The inner prism made of hardened and ground steel each guide trough 18 forms a self-centering Slideway, in the one not shown in the drawing pressure and quantity controlled oil pump a closed, the chain links 7 sliding oil film is formed.

Die beiden stationären Führungen 16 sind beidseitig an einen Kettenträger 22 geschraubt und diesem gegenüber höhen- und seitenjustierbar. An der außenliegenden Längsseite jeder stationären Führung 16 ist eine Dichtleiste 23 befestigt, die den Prismeneingriffsbereich außen abdeckt und in eine in jedem Kettenglied 7 jeweils oberhalb des Außenprismas 17 liegende Längsdichtungsnut 24 dichtend eingreift.The two stationary guides 16 are on one side Chain carrier 22 screwed and this height and side adjustable. On the outside long side of each stationary Guide 16 is attached to a sealing strip 23, the prism engagement area covers the outside and in one in each chain link 7 longitudinal sealing groove located above the outer prism 17 24 sealingly engages.

Jedes Kettenglied 7 besteht aus einer mit den beiden Außenprismen 17 versehenen Rotgussplatte 25 und einer auf dieser befestigten Lasttragplatte 26. Außerdem weist jedes Kettenglied 7 eine den Trennspalt zwischen benachbarten Kettengliedern 7 überbrückende Spaltdichtung 27 auf.Each chain link 7 consists of one with the two outer prisms 17 provided gunmetal plate 25 and one attached to it Load bearing plate 26. In addition, each chain link 7 a bridging the separation gap between adjacent chain links 7 Gap seal 27.

Die Präzisionsnadellagerkette 13 läuft in einem seitlich von den beiden stationären Führungen 16 begrenzten, als Überdruckkammer ausgebildeten Hohlraum 28 um, der oben und unten mit Pressluft beaufschlagt ist.The precision needle bearing chain 13 runs in a side of the two stationary guides 16 limited, as a pressure chamber trained cavity 28 um, the top and bottom with compressed air is acted upon.

Figur 2 lässt erkennen, dass am Kettenbahneinlauf ein Staubabstreifer 29 für die Außenprismen 17 der Kettenglieder 7 und am Kettenbahnauslauf ein Ölabstreifer 30 für die genannten Außenprismen 17 vorgesehen sind.Figure 2 shows that a dust scraper at the chain conveyor inlet 29 for the outer prisms 17 of the chain links 7 and Chain track outlet an oil wiper 30 for the outer prisms mentioned 17 are provided.

Claims (16)

  1. Conveyor chain for strip- or plate-shaped workpieces (5) to be machined by a continuous process, in particular for machines for machining edges or for double-end profilers, comprising chain links (7) which form an endless chain band deflected around chain wheels (9, 10) and having an essentially continuous load-bearing surface (8), are connected to one another by connecting pieces and parallel link pins (15) mounted in needle bearings (14), and are supported on two stationary guides (16) arranged parallel to and at a distance from one another, characterized in that each chain link (7) has two prismatic or cylindrical guide profiles (hereinafter: outer prisms 17) of positive design which are assigned to the stationary guides (16) and are guided in a sliding manner in guide channels (18) (hereinafter: inner prisms), adapted to them in cross section, of the stationary guides (16), these inner prisms being connected via oil-feed and oil-return lines (19, 20) to an oil circulation pressure lubrication system and forming a self-centring sliding guide with a closed oil film supporting the chain links (7) in a sliding manner.
  2. Conveyor chain according to Claim 1, characterized in that each guide channel (18) has a central longitudinal groove (21) for the oil return.
  3. Conveyor chain according to Claim 1 or 2,
    characterized in that at least one of the two stationary guides (16) is fastened to a chain carrier (22) in a vertically and laterally adjustable manner.
  4. Conveyor chain according to Claim 1, 2 or 3, characterized in that a sealing strip (23) is fastened to the outer longitudinal side of each stationary guide (16), and this sealing strip (23) covers the prism engagement region on the outside and engages in a sealing manner in a longitudinal sealing groove (24) lying in each chain link (7) in each case above the outer prism (17).
  5. Conveyor chain according to one of the preceding claims, characterized in that the preferably 90° inner prism of the guide channel (18) is made of hardened and ground steel.
  6. Conveyor chain according to one of the preceding claims, characterized in that each chain link (7) consists of a red-brass plate (25) provided with the two outer prisms (17) and of a load-bearing plate (26) fastened to this red-brass plate (25).
  7. Conveyor chain according to one of the preceding claims, characterized in that each chain link (7) has a gap seal (27) bridging the separating gap between adjacent chain links (7).
  8. Conveyor chain according to one of the preceding claims, characterized by a precision needle bearing chain (13) which is guided around chain wheels (9, 10) having a relatively large diameter and has a small pitch and bearings (14) preferably fitted in a dust-tight manner.
  9. Conveyor chain according to one of the preceding claims, characterized in that the link pins (15) mesh with the teeth of the chain wheels (9, 10) on both sides.
  10. Conveyor chain according to Claim 8 or 9,
    characterized in that the precision needle bearing chain (13) revolves in a cavity (28) which is defined laterally by the two stationary guides (16) and is designed as a positive-pressure chamber and to which compressed air is applied.
  11. Conveyor chain according to one of the preceding claims, characterized in that a dust wiper (29) for the outer prisms (17) of the chain links (7) is provided at the chain path entry.
  12. Conveyor chain according to one of the preceding claims, characterized in that an oil wiper (30) for the outer prisms (17) of the chain links (7) is provided at the chain path exit.
  13. Conveyor chain according to one of the preceding claims, characterized by a filter system for the oil running back from the guide channels (18).
  14. Conveyor chain according to one of the preceding claims, characterized by a flat belt (3) supporting the bottom or loose strand of the conveyor chain (1).
  15. Conveyor chain according to Claim 14,
    characterized in that the flat belt (3) is driven synchronously with the needle bearing chain (13).
  16. Conveyor chain according to Claim 14 or 15,
    characterized in that the flat belt (3) is guided via supporting rollers (12) mounted on ball bearings.
EP00119525A 1999-09-28 2000-09-07 Conveyor chain in particular for machines for machining edges Expired - Lifetime EP1088775B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19946365A DE19946365C2 (en) 1999-09-28 1999-09-28 Transport chain especially for edge processing machines
DE19946365 1999-09-28

Publications (3)

Publication Number Publication Date
EP1088775A2 EP1088775A2 (en) 2001-04-04
EP1088775A3 EP1088775A3 (en) 2001-11-28
EP1088775B1 true EP1088775B1 (en) 2003-05-14

Family

ID=7923527

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00119525A Expired - Lifetime EP1088775B1 (en) 1999-09-28 2000-09-07 Conveyor chain in particular for machines for machining edges

Country Status (5)

Country Link
EP (1) EP1088775B1 (en)
AT (1) ATE240250T1 (en)
DE (2) DE19946365C2 (en)
ES (1) ES2194661T3 (en)
PL (1) PL342750A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004016070A1 (en) * 2004-03-30 2005-11-03 HOLZHÄUSER, Jürgen Endless conveyor
DE102004019950A1 (en) * 2004-04-23 2005-11-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Conveyor for transporting semiconductor wafers through high temperature zones comprises chain made from ceramic links which are directly connected
CN102502214A (en) * 2011-10-19 2012-06-20 焦作煤业（集团）新乡能源有限公司 Bearing greasing device of coal mine belt conveyor
CN105173542A (en) * 2015-08-28 2015-12-23 江苏通达动力科技股份有限公司 Heavy type transporter with two-row chain wheels and chains
DE102018105455A1 (en) * 2018-03-09 2019-09-12 Weber Maschinenbau Gmbh Breidenbach Device for handling objects
CN118419479B (en) * 2024-07-05 2024-09-06 河北省水利工程局集团有限公司 Feeding device for water conservancy and hydropower construction engineering

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Publication number Priority date Publication date Assignee Title
US2304571A (en) * 1941-11-07 1942-12-08 Joa Curt G Inc Conveyer lubrication
DE957374C (en) * 1951-12-29 1957-01-31 Gewerk Eisenhuette Westfalia Rubber or steel link conveyor belt
US3262550A (en) * 1964-05-11 1966-07-26 Conveyor Specialties Company Conveyor chain
US3744618A (en) * 1971-05-26 1973-07-10 M Monne Chain conveyors
DE7320344U (en) * 1973-05-30 1973-09-13 Ima Klessmann Kg Transport chain for woodworking machines
DE2912194A1 (en) * 1979-03-28 1980-10-09 Meyer & Schwabedissen F CHAINWAY, ESPECIALLY FOR DOUBLE-END PROFILERS, EDGE MACHINING MACHINES OR THE LIKE.
CH660068A5 (en) * 1983-05-04 1987-03-13 Zuerich Verpackungstech DEVICE FOR LUBRICATING THE CHAIN GUIDE ON A TOW CHAIN CONVEYOR FOR PARTS.
CH660871A5 (en) * 1983-05-26 1987-05-29 Elevator Gmbh Conveyor having a track and rolling frames
DE3609579A1 (en) * 1986-03-21 1987-10-01 Daimler Benz Ag Device for the lubrication of a timing chain on an internal combustion engine
JP3176508B2 (en) * 1994-05-25 2001-06-18 株式会社共立 Chainsaw
DE19547353B4 (en) * 1995-02-28 2007-06-14 Fa. Andreas Stihl Guide rail with an oil supply channel
US5779027A (en) * 1996-02-14 1998-07-14 Rexnord Corporation Sideflexing conveyor including lubrication inserts
DE19813882A1 (en) * 1998-03-30 1999-10-14 Iav Motor Gmbh Motor chain drive guide combines lubrication

Also Published As

Publication number Publication date
DE19946365A1 (en) 2001-04-19
PL342750A1 (en) 2001-04-09
EP1088775A3 (en) 2001-11-28
ES2194661T3 (en) 2003-12-01
EP1088775A2 (en) 2001-04-04
DE50002158D1 (en) 2003-06-18
DE19946365C2 (en) 2001-07-26
ATE240250T1 (en) 2003-05-15

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